PubMed is a free search engine accessing primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics.

Punk rock (or "punk") is a rock music genre that developed in the mid-1970s in the United States, United Kingdom, and Australia.

Pulp Fiction is a 1994 American crime film written and directed by Quentin Tarantino; it is based on a story by Tarantino and Roger Avary.

Punjab ( (listen)) is a state in northern India. Forming part of the larger Punjab region of the Indian subcontinent, the state is bordered by the Indian states of Jammu and Kashmir to the north, Himachal Pradesh to the east, Haryana to the south and southeast, Rajasthan to the southwest, and the Pakistani province of Punjab to the west.

Public relations (PR) is the practice of managing the spread of information between an individual or an organization (such as a business, government agency, or a nonprofit organization) and the public.

Public-key cryptography, or asymmetric cryptography, is any cryptographic system that uses pairs of keys: public keys which may be disseminated widely, and private keys which are known only to the owner.